128 citations · 483 across the 31 of their papers we have counts for
4 papers · 1 filter
On Decentralized Estimation with Active Queries
Theodoros Tsiligkaridis, Brian M. Sadler, Alfred O. Hero
We consider the problem of decentralized 20 questions with noise for multiple players/agents under the minimum entropy criterion in the setting of stochastic search over a paramete…
Kronecker Sum Decompositions of Space-Time Data
Kristjan Greenewald, Theodoros Tsiligkaridis, Alfred O Hero
In this paper we consider the use of the space vs. time Kronecker product decomposition in the estimation of covariance matrices for spatio-temporal data. This decomposition impose…
Collaborative 20 Questions for Target Localization
Theodoros Tsiligkaridis, Brian M. Sadler, Alfred O. Hero
We consider the problem of 20 questions with noise for multiple players under the minimum entropy criterion in the setting of stochastic search, with application to target localiza…
Covariance Estimation in High Dimensions via Kronecker Product Expansions
Theodoros Tsiligkaridis, Alfred O. Hero
This paper presents a new method for estimating high dimensional covariance matrices. The method, permuted rank-penalized least-squares (PRLS), is based on a Kronecker product seri…